Look up at the sky - what do you see? If you're near a city, you may
see a few bright white stars. But you're not really seeing the full story of the sky -
stars come in a dazzling array of colors, from bright blue to white to deep red. In this
project, you'll see stars of all colors, and you'll learn what causes the color of
a star.

How do astronomers study galaxies, which can be millions or billions of
light-years away - so far away that most just look like fuzzy patches of light?
In the Galaxies project, you will learn by examining galaxies yourself.